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On the design of inclusive ubiquitous access
KTH, School of Information and Communication Technology (ICT), Communication: Services and Infrastucture, Telecommunication Systems Laboratory, TSLab.
KTH, School of Information and Communication Technology (ICT), Communication: Services and Infrastucture, Telecommunication Systems Laboratory, TSLab.
KTH, School of Information and Communication Technology (ICT), Communication: Services and Infrastucture, Telecommunication Systems Laboratory, TSLab.ORCID iD: 0000-0002-9626-1496
2011 (English)In: ICUFN 2011 - 3rd International Conference on Ubiquitous and Future Networks, Dalian, China: IEEE , 2011, 346-352 p.Conference paper, Published paper (Refereed)
Abstract [en]

The development towards ubiquitous network access requires innovative solutions to get remote areas included, especially rural areas of developing regions. The challenges include robustness of network components, poor or non-existent power supply and sustainable business models. We argue that large scale user-driven community networks are becoming technically viable to deploy in areas that are short of supply of telecommunication services due to little or no commercial interest. To support this claim, we discuss the design of key network elements and careful power management based on alternative energy sources and storage. We also provide a status report from ongoing field-tests regarding provisioning of broadband network services in Serengeti, Tanzania, and outline briefly our strategy to achieve sustainability. On the technical side, we first discuss an affordable, high-performance, low-effect router based on open source software and standard off-the-shelf hardware offering both copper and fibre links. Our design is capable of forwarding more than 700kpps at 22.3W. The power consumption is considerably less than all alternatives in our comparison. Then we discuss power management and the use of batteries and super-capacitors as backup and storage solutions.

Place, publisher, year, edition, pages
Dalian, China: IEEE , 2011. 346-352 p.
Keyword [en]
low effect router, developing regions
National Category
Telecommunications
Research subject
SRA - ICT
Identifiers
URN: urn:nbn:se:kth:diva-48397DOI: 10.1109/ICUFN.2011.5949189Scopus ID: 2-s2.0-79961153585ISBN: 978-1-4577-1176-3 (print)OAI: oai:DiVA.org:kth-48397DiVA: diva2:457498
Conference
3rd International Conference on Ubiquitous and Future Networks, ICUFN 2011; Dalian; 15 June 2011 through 17 June 2011
Note
QC 20111122Available from: 2011-11-18 Created: 2011-11-18 Last updated: 2011-11-25Bibliographically approved
In thesis
1. Towards Sustainable Broadband Communication in Under-served Areas: A Case Study from Tanzania
Open this publication in new window or tab >>Towards Sustainable Broadband Communication in Under-served Areas: A Case Study from Tanzania
2011 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

The problem discussed in this thesis is how to establish sustainable broadband markets in under-served areas. The purpose is to improve people’s living conditions by promoting efficient service delivery in education, health, and governance and alleviating poverty. Due to the high-perceived risks, the market forces have failed to bring ICT in these areas. The business community is reluctant to take on the supplier role.

Earlier efforts through development partners have been focusing on connecting under-served areas to the global Internet via telecentres. However, most implementations could not operate beyond the initial funding for various reasons, especially the lack of understanding of the local needs where most technical solutions were imported from the developed world, not optimized to work under local conditions.

We propose the creation of community or municipal owned “broadband islands”, defined as high speed communication broadband networks that do not depend on external connections for their operations. Using an Action Research participatory approach, we are emphasizing multi-stakeholder partnerships, and engaging the local community to contribute infrastructure, technical solutions and leadership. Our proposal is validated through the design and deployment of two pilot sites in rural areas of Tanzania. Our original contributions include 1) An overall model on how to establish and sustain broadband markets in under-served areas, making it scalable and reproducible. 2) technical innovations, especially the design and implementation of a low cost, low power-consuming, and robust router with integrated power management. 3) Organizational innovations by establishing institutional mechanisms at a local level in public-private-community partnership. 4) Innovative funding mechanisms by identifying partners who can pay on behalf of the end users and cut down costs through resource sharing schemes.

The government of Tanzania has shown interest to use the pilot sites as models for extending the national backbone into other municipal. Also, discussions are underway to organize similar pilots in East Africa.

Place, publisher, year, edition, pages
Stockholm: KTH Royal Institute of Technology, 2011. xiv, 49 p.
Series
Trita-ICT-ECS AVH, ISSN 1653-6363 ; 11:11
National Category
Telecommunications
Identifiers
urn:nbn:se:kth:diva-49085 (URN)978-91-7501-154-7 (ISBN)
Public defence
2011-12-09, Sal/Hall E, KTH-Forum, Isafjordsgatan 39, Kista, 13:00 (English)
Opponent
Supervisors
Note
QC 20111125Available from: 2011-11-25 Created: 2011-11-25 Last updated: 2011-11-25Bibliographically approved

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Pehrson, Björn

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